The objective of this paper is to summarize noteworthy myr achievements in canada and to review advances in the development of best management practices ( bmps ) for sustainable and environmentally protective crop production 本文就加拿大在高产研究中新取得的一些重要成果作一总结，并回顾一下在高产稳产与环境保护并重的农业生产中，最优管理技术（ bmp ）的进展。
